A) If \[I\]decreases, A will repel B
B) Whether \[I\] increases or decreases, B will not experience any force
C) If \[I\] increases, A will repel B
D) If \[I\] increases, A will attract B
Correct Answer: C
Solution :
If \[\text{I}\]increases then magnetic field in coil will be increases and \[\text{\vec{B}}\]will acts as shown in ring \[\text{B}\,\text{I}\]will induce in such away that will opposes the increases of \[\text{I}\]in electromagnet. Hence in B direction of \[\text{\vec{B}}\]will be as shown. Hence repel B.You need to login to perform this action.
You will be redirected in
3 sec